Publications

● PUBLICATION (PAPERS)

(198*) D. Kim, H. Lim, S. H. Kim, K. N. Lee, J. You, D. Y. Ryu, J. Kim, “Recent developments of polymer-based encapsulants and backsheets for stable and high-performance silicon photovoltaic modules: materials nanoarchitectonics and mechanisms”, Journal of Materials Chemistry A, 12, 7452-7469 (2024.02).

(197) T. Kim, T. H. Park, J. W. Lee, D. Lee, S. Mun, G. Kim, Y. Kim, G. Kim, J. W. Park, K. Lee, S. W. Lee, S. Jeon, D. Y. Ryu, W. Shim, J. Kim, C. Park, "Self-Powered Sweat-Responsive Structural Color Display", Advanced Functional Materials, 2314721 (2024.02).

(196) H. Han, J.W. Oh, H. Lee, S. Lee,S Mun, S. Jeon, D. Kim, J. Jang, W. Jiang, T. Kim, B. Jeong, J. Kim, D. Y. Ryu, C. Park, "Rewritable Photoluminescence and Structural Color Display for Dual-Responsive Optical Encryption", Advanced Material, 2310130 (2023.12).

(195) N. Kim, J. S. Kang, T. Jun, J.-M. Suh, D.-H. Roh, W.-W. Park, O.-H. Kwon, T.-H. Kwon, Mi H. Lim, D. Y. Ryu, M. Seo, and B.-S. Kim “Tailoring Dynamic Chiral Supramolecular Assembly with Phototriggered Radical Anions of C3‑Symmetric Triphenylene Triimides”, Macromolecules, 57, 21-31 (2024.01). 

(194*) S. Jeon, S. Lee, J. Kim, S. Eim, W. Lee, W. H. Nam, J. G. Son, and D. Y. Ryu, “Two-dimensional Directed Lamellar Assembly in Silicon- and Fluorine-containing Block Copolymer with Identical Surface Energies” NPG Asia Materials, 15, 68 (2023.12). 

(193*) S. Park, S. Shafian, J. Lee, S. Jo, S. Jeon, S. Lee, D. Shangxian, H. Ahn, K. Kim, and D. Y. Ryu, and J. Hong, “High-Efficiency Structural Coloration Enabled by Defect-Free Block Copolymer Self-Assembly for a Solar Cell Distributed Bragg Reflector”, Advanced Optical Materials, 11, 2301357 (2023.12). 

(192) W. Choi, M. Choi, T. Jun, Y. Kim, D. Y. Ryu, N. K. Kim, H.-J. Lee, Y. Lee, S. H. Lee, W. Lee, M. Lee, K. Kang, J.-S. Kwon, J. G. Jang, H. Ha, J. Y. Choi, S. Lim, S. Lee, S. Y. Jung, and J. Hong, “Templated Assembly of Silk Fibroin for a Bio-Feedstock-Derived Heart Valve Leaflet”, Advanced Functional Materials, 33, 2307106 (2023.11). 

(191) W. Choi, U. Mangal, J.-Y. Park, J.-Y. Kim, T. Jun, J. W. Jung, M. Choi, S. Jung, M. Lee, J.-Y. Na, D. Y. Ryu, J. M. Kim, J.-S. Kwon, W.-G. Koh, S. Lee, P. T. J. Hwang, K.-J. Lee, U.-W. Jung, J.-K. Cha, S.-H. Choi, and J. Hong, “Occlusive Membranes for Guided Regeneration of Inflamed Tissue Defects”, Nature Communications, 14, 7687 (2023.11).

(190) S. Mun, T. H. Park, J. W. Oh, T. Kim, K. Lee, C. E. Lee, H. Kim, J. W. Park, S. Jeon, D. Y. Ryu, S. Cheon, Y.-H. Kim, S.-Y. Lee, S.-S. Hwang, J. Y. Kim, C. Park, “Reconfigurable dual-mode optical encryption enabled by block copolymer photonic crystal with micro-imprinted holographic metasurface”, Materials Today, 70, 44-56 (2023.10). 

(189) K. H. Kim, Y. Huh, I. Song, D. Y. Ryu, J. G. Son, and J. Bang, “Recent advances in block copolymer self-assembly: From the lowest to the highest”, Journal of Polymer Science, 11, 2301357 (2023.09). 

(188) J. Lee, S. Kim, H. Kwon, S. Jo, D. Y. Ryu, U. H. Choi, B.-S. Kim, “Single-Ion-Conducting Polyether Electrolytes via Orthogonal Postpolymerization Modification”, Macromolecules, 56, 7520-7531 (2023.09). 

(187) Y. Lee, S. Cho, K. Park, T. Kim, J. Kim, D. Y. Ryu, and J. Hong, “Potential lifetime effects caused by cellular uptake of nanoplastics: A review”, Environmental Pollution, 329, 121668 (2023.07). 

(186) H. Cho, H.-J. Jin, S. Lee, S. Jeon, Y. Cho, S. Park, M. Jang, L. J. Widiapradja, D. Y. Ryu, J. H. Park, K. Kim, and S. Im, “5 nm Ultrathin Crystalline Ferroelectric P(VDF-TrFE)-Brush Tuned for Hysteresis-Free Sub 60 mV dec−1 Negative-Capacitance Transistors”, Advanced Materials, 35, 2300478 (2023.06). 

(185*) H. I. Jeon, S. Jo, S. Jeon, T. Jun, J. Moon, J. H. Cho, H. Ahn, S. Lee, D. Y. Ryu, and T. P. Russell, “Repairable Macroscopic Monodomain Arrays from Block Copolymers Enabled by Photoplastic and Photodielectric Effects”, ACS Nano, 17, 8367-8375 (2023.05). 

(184) I. Gunkel, X. Gu, J. Lutkenhaus, D. Y. Ryu, J.-T. Chen, and Z. Lin, “Introduction to the honorary themed collection for Thomas P. Russell”, Journal of Materials Chemistry A, 11, 11028-11030 (2023.05). 

(183*) T. Jun, H. Park, J. Kim, W. Lee, H. Ahn, W.-D. Jang, B. Lee, and D. Y. Ryu, “Impact of peripheral alkyl chain length on mesocrystal assemblies of G2 dendrons”, Nanoscale, 15, 9069-9075 (2023.05). 

(182) W. Zhu, D. Kim, M. Han, J. Jang, H. Choi, G. Kwon, Y. Jeon, D. Y. Ryu, S.-H. Lim, J. You, S. Li, J. Kim, “Fibrous Cellulose Nanoarchitectonics on N-doped Carbon-based Metal-Free Catalytic Nanofilter for Highly Efficient Advanced Oxidation Process”, Chemical Engineering Journal, 460, 141593 (2023.03). 

(181*) H. Lee, H. Park, D. Y. Ryu, W.-D. Jang, “Porphyrin-based supramolecular polymers”, Chemical Society Reviews, 52, 1947–1974 (2023.03). 

(180) C. E. Lee, T. H. Park, S. Mun, Y. Jung, S. Lee, J. Jang, D. Y. Ryu, and C. Park, “Low‐Powered E‐Switching Block Copolymer Structural Color Display with Organohydrogel Humidity Controller”, Advanced Materials Technologies, 7, 2200385 (2022.08).  

(179*) T. Jun, H. Park, S. Jeon, H. Ahn, W.-D. Jang, B. Lee, and D. Y. Ryu, “Apex Hydrogen Bonds in Dendron Assembly Modulate Close-packed Mesocrystal Structures”, Nanoscale, 14, 16936-16943 (2022.11).

(178) W. Choi, H. Kim, T. Jun, S. Y. Jung, D. Y. Ryu, J. S. Kwon, J. Kim, W. Lee, and J. Hong, “Double-action Disinfection with Silk Fibroin Gauze: Reliable Therapeutics to Prevent the Infectious Complications”, ACS Materials Letters, 4, 2219-2232 (2022.11).

(177*) W. Choi, T. Jun, M. Lee, K. Park, M. Choi, S. Jung, J.-K. Cha, J.-S. Kwon, Y. Jin, S. Lee, D. Y. Ryu, and J. Hong, “Regulation of the Inevitable Water-responsivity of Silk Fibroin Biopolymer by Polar Amino Acid Activation”, ACS Nano, 16, 17274-17288 (2022.10). 

(176*) S. Jeon, T. Jun, S. Jo, K. Kim, B. Lee, S. Lee, and D. Y. Ryu, “Modifying Frank-Kasper Mesophases by Modulating Chain Configuration in PDMS-b-PTFEA Copolymers”, Macromolecules, 55, 8049-8057 (2022.09).

(175) C. E. Lee, T. H. Park, S. Mun, Y. Jung, S. Lee, J. Jang, D. Y. Ryu, and C. Park, “Low‐Powered E‐Switching Block Copolymer Structural Color Display with Organohydrogel Humidity Controller”, Advanced Materials Technologies, 7, 2200385 (2022.08). 

(174) J. Kim, W. Lee, H. Kim, D.Y. Ryu, H. Ahn, B. Chae “In-depth Probing of Thermally-driven Phase Separation Behavior of Lamella-forming PS-b-PMMA Films by Infrared Nanoscopy”, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 274, 121095 (2022.06).

(173) H. Han, J. W. Oh, J. Park, H. Lee, C. Park, S. W. Lee, K. Lee, S. Jeon, S. Kim, Y. Park, B. Jeong, D. Y. Ryu, and C. Park, “Hierarchically Ordered Perovskites with High Photo‐Electronic and Environmental Stability via Nanoimprinting Guided Block Copolymer Self‐Assembly”, Advanced Materials Interfaces, 9, 2200082 (2022.06). 

(172*) H. Park, S. Jo, B. Kang, K. Hur, S. S. Oh, D. Y. Ryu and S. Lee, “Block copolymer gyroids for nanophotonics: significance of lattice transformations”, Nanophotonics, 11, 2583-2615 (2022.05). 

(171) K. Y. Ryu, J. Lee, T. Jun, D. Lee, B. Kim, D. Y. Ryu, and K. Kim, “Immobilization of Conjugated Polymer Domains for Highly Stable Non-Fullerene-Based Organic Solar”, ACS Applied Materials & Interfaces, 14 23474-23486 (2022.05).

(170) G. S. Park, D. H. Ho, B. Lyu, S. Jeon, D. Y. Ryu, D. W. Kim, N. Lee, S. Kim, Y. J. Song, S. B. Jo, and J. H. Cho, “Comb-type Polymer-Hybridized MXene Nanosheets Dispersible in Arbitrary Polar, Nonpolar, and Ionic Solvents”, Science Advances, 8, EABL5299 (2022.04). 

(169) H. S. Kang, C. Park, H. Eoh, C. E. Lee, D. Y. Ryu, Y. Kang, X. Feng, J. Huh, E. L. Thomas, and C. Park, “Visualization of nonsingular defect enabling rapid control of structural color”, Science Advances, 8, EABM5120 (2022.03).

(168) T. Kim, J. W. Lee, C. Park, K. Lee, C. E. Lee, S. Lee, Y. Kim, S. Kim, S. Jeon, D. Y. Ryu, W-G Koh, C. Park, “Self-Powered Finger Motion-Sensing Structural Color Display enabled by Block Copolymer Photonic Crystal”, Nano Energy, 92, 106688 (2022.02). 

(167) H. Eoh, Y. Jung, C. Park, C. E. Lee, T. H. Park, H. S. Kang, S. Jeon, D. Y. Ryu, J. Huh, and C. Park. “Photonic Crystal Palette of Binary Block Copolymer Blends for Full Visible Structural Color Encryption”, Advanced Functional Materials, 32, 2103697 (2022.01).

(166*) D. Yong, Y. Kim, S. Jo, D. Y. Ryu, and J. U. Kim “Order-to-Disorder Transition of Cylinder-Forming Block Copolymer Films Confined within Neutral Interfaces”, Macromolecules, 54, 11304-11315 (2021.12). 

(165*) S. Jo, T. Jun, H. I. Jeon, S. Seo, H. Kim, S. Lee, and D. Y. Ryu “Optical Reflection from Unforbidden Diffraction of Block Copolymer Templated Gyroid Films”, ACS Macro Letters, 10, 1609-1615 (2021.12). 

(164*) W. Lee, J. Kim, S. Jo, B. Chae, H. Ahn, and D. Y. Ryu, “Microdomain homogeneity evaluation of perpendicular lamellar structures in block copolymer films: X-ray scattering and IR nanospectroscopy analyses”, Polymer Testing, 104, 107409 (2021.12). 

(163*) T. Jun, H. Park, S. Jeon, S. Jo, H. Ahn, W-D Jang, B. Lee, and D. Y. Ryu, “Mesoscale Frank-Kasper crystal structures from dendron assembly by controlling core apex interactions” Journal of the American Chemical Society (JACS), 143, 17548-17556 (2021.10). 

(162*) S. Jeon, T. Jun, H. I. Jeon, H. Ahn, S. Lee, B. Lee, and D. Y. Ryu, “Various Low-Symmetry Phases in High‑χ and Conformationally Asymmetric PDMS‑b‑PTFEA Copolymers” Macromolecules, 54, 9351-9360 (2021.10).  

(161*) S. Jo, H. Park, T. Jun, K. Kim, H. Jung, S. Park, B. Lee, S. Lee, and D. Y. Ryu “Symmetry-breaking in double gyroid block copolymer films by non-affine distortion”, Applied Materials Today, 23, 101006 (2021.06).

(160) T. H. Park, H. Eoh, Y. Jung, G‐W Lee, C. E. Lee, H. S. Kang, J. Lee, K‐B Kim, D. Y. Ryu, S. Yu, and C. Park, “Thermo‐Adaptive Block Copolymer Structural Color Electronics”, Advanced Functional Materials, 31, 2008548 (2021.03).

(159*) S. Jo, S. Jeon, H. Kim, C. Ryu, S. Lee, and D. Y. Ryu “Balanced Interfacial Interactions for Fluoroacrylic Block Copolymer Films and Fast Electric Field Directed Assembly”, Chemistry of Materials, 32, 9633-9641 (2020.11).

(158) M. A. Mubarok, F. T. A. Wibowo, H. Aqoma, N. V. Krishna, W. Lee, D. Y. Ryu, S. Cho, I. H. Jung, and S-Y Jang, “PbS-Based Quantum Dot Solar Cells with Engineered π-Conjugated Polymers Achieve 13% Efficiency”, ACS Energy Letters, 5, 3452 (2020.11).

(157) H. Aqoma, I. F. Imran, F. T. A. Wibowo, N. V. Krishna, W. Lee, A. K. Sarker, D. Y. Ryu, and S.-Y. Jang, “High-Efficiency Solution-Processed Two-Terminal Hybrid Tandem Solar Cells Using Spectrally Matched Inorganic and Organic Photoactive Materials”, Advanced Energy Materials, 10, 2001188 (2020.10). 

(156) S. Kang, D. Y. Ryu, E. Ringe, R. J. Hickey, and S-J Park, “Nanoparticle-Induced Self-Assembly of Block Copolymers into Nanoporous Films at the Air–Water Interface”, ACS Nano, 14, 12203 (2020.09). 

(155*)  S. Jo, Y. Kim, S. Jo, K. Kim, D. Y. Ryu, "Stacked Layer to Gyroid Structures in Partially Fluorinated PS-b-PtBMA Copolymer Films", Journal of Photopolymer Science and Technology 33, 523 (2020.09). 

(154*) Y. Kim, W. Lee, S. Jo, H. Ahn, K. Kim, J. U. Kim, D. Y. Ryu, “Lamellar Orientation and Transition Behavior of PS-b-P2VP Copolymers Supported on Physically Adsorbed Layers” Macromolecules, 53, 6213 (2020.08). 

(153) H. S. Kang, S. W. Han, C. Park, S. W. Lee, H. Eoh, J. Baek, D.-G. Shin, T. H. Park, J. Huh, H. Lee, D.-E. Kim, D. Y. Ryu, E. L. Thomas, W.-G. Koh, and C. Park “3D touchless multiorder reflection structural color sensing display” Science Advances, 6, EABB5769 (2020.07). 

(152) R. Azmi, N. Nurrosyid, S.-H. Lee, M. A. Mubarok, W. Lee, S. Hwang, W. Yin, T. K. Ahn, T.-W. Kim, D. Y. Ryu, Y. R. Do, and S.-Y. Jang, “Shallow and Deep Trap States Passivation for Low-Temperature Processed Perovskite Solar Cells” ACS Energy Letters, 5, 1396-1403 (2020.05). 

(151) M. S. Park, C. S. Lee, J. H. Lee, D. Y. Ryu, and J. H. Kim, “Dissolution-Precipitation Approach for Long-Term Stable Low-Friction Composites Consisting of Mesoporous TiO2 Nanospheres and Carbon Black in Poly(Vinylidene Fluoride) Matrix ” Tribology International, 145, 106187 (2020.5). 

(150) M. J. Kim, M. Lee, H. Min, S. Kim, J. Yang, H. Kweon, W. Lee, D. H. Kim, J. H. Choi, D. Y. Ryu, M. S. Kang, B. Kim and J. H. Cho “Universal Three-Dimensional Crosslinker for All-Photopatterned Electronics”, Nature Communications, 11, 1520 (2020.03).

(149) M. A. Mubarok, H. Aqoma, F. T. A. Wibowo, W. Lee, H. M. Kim, D. Y. Ryu, J.-W. Jeon, and S.-Y. Jang “Molecular Engineering in Hole Transport π‐Conjugated Polymers to Enable High Efficiency Colloidal Quantum Dot Solar Cells”, Advanced Energy Materials, 10, 1902933 (2020.02). 

(148) B. J. Park, N. U. Kim, D. Y. Ryu, and J. H. Kim, “P(VDF-co-CTFE)-g-P2VP Amphiphilic Graft Copolymers: Synthesis, Structure and Permeation Properties”, Polymers for Advanced Technologies, 30, 2707 (2019.11). 

(147*) Y. Kim, D. Yong, W. Lee, H. Ahn, J. H. Kim, J. U. Kim, and D. Y. Ryu, "Order-to-Disorder Transition of Lamella-Forming PS-b-P2VP Films Confined in Neutral Substrate", Macromolecules, 52, 8672-8681 (2019.11).

(146*) S. Lee, W. Lee, N. L. Yamada, K. Tanaka, J. H. Kim, H. Lee, and D. Y. Ryu, “Instability of Polystyrene Film and Thermal Behaviors Mediated by Unfavorable Silicon Oxide Inter-layer”, Macromolecules, 52, 7524-7530 (2019.10).

(145) H. Eoh, H. S. Kang, M. J. Kim, M. Koo, T. H. Park, Y. Kim, H. Lim, D. Y. Ryu, E. Kim, J. Huh, Y. Kang, and C. Park, “Nonvolatile, Multicolored Photothermal Writing of Block Copolymer Structural Color”  Advanced Functional Materials, 29, 1904055 (2019.10). 

(144*) S. Jeon, T. Jun, S. Jo, H. Ahn, S.Lee, B. Lee, and D. Y. Ryu, “Frank-Kasper phases identified in PDMS-b-PTFEA Copolymers with High Conformational Asymmetry”, Macromolecular Rapid Communications, 40, 1900259 (2019.10).  

(143) M. S. Park, N. U. Kim, B. J. Park, D. Y. Ryu, and J. H. Kim, “Ultra-selective Ferric Ion-complexed Membranes Composed of Water-based Zwitterionic Comb Copolymers” Journal of Materials Chemistry A,  7, 20847-20853 (2019.09). 

(142) H. Han, B. Jeong, T. H. Park, W. Cha, S. M. Cho, Y. Kim, H. H. Kim, D. Kim, D. Y. Ryu, W. K. Choi, and C. Park, “Highly Photoluminescent and Environmentally Stable Perovskite Nanocrystals Templated in Thin Self-Assembled Block Copolymer Films” Advanced Functional Materials, 29, 1808193 (2019.06). 

(141*) S. Jo, S.Park, T. Jun,Y. Kim, and D. Y. Ryu, "Side-Chain Fluorination Effects on Morphological Behavior of PS-b-PtBMA Disorder to Order Structures", Journal of Photopolymer Science and Technology, 32, 3, 401-406 (2019.06). 

(140*) W. Lee, Y. Kim, S.Y. Jo, S. Park, H. Ahn, and D. Y. Ryu, “Irreversible Physisorption of PS-b-PMMA Copolymers on Substrates for Balanced Interfacial Interactions as a Versatile Surface Modification” ACS Macro Letters, 8, 519-524 (2019.05). 

(139*) W. T. Hadmojo, F. T. A. Wibowo, W. Lee, H.-K. Jang, Y. Kim, S. Sinaga, M. Park, S.-Y. Ju, D. Y. Ryu, I. H. Jung, S.-Y. Jang, “Performance Optimization of Parallel-Like Ternary Organic Solar Cells through Simultaneous Improvement in Charge Generation and Transport” Advanced Functional Materials, 1808731 (2019.04). 

(138*) S. Park, T. Jun, H. R. Yoon, S. Jo, J. H. Kim, C. Y. Ryu, and D. Y. Ryu, “Nanoporous Structures from PS-b-PMMA-b-PtBA Triblock Copolymer and Selective Modification for Ultrafiltration Membranes” ACS Applied Polymer Materials, 1, 584-592 (2019.03). 

(137) S. Park, L. Kilgallon, Z. Yang, D. Y. Ryu, and C. Y. Ryu, “Molecular Origin of the Induction Period in Photo-initiated Cationic Polymerization of Epoxies and Oxetanes”, Macromolecules, 52, 1158-1165 (2019.02). 

(136) C. H. Park, J. H. Lee, J. P. Jung, W. Lee, D. Y. Ryu, and J. H. Kim, “Orientation of an Amphiphilic Copolymer to Lamellar Structure on Hydrophobic Surface and Implications for CO2 Capture Membranes”, Angewandte Chemie International, 131, 1155-1159 (2019.01). 

(135*) Y. Kim, D. Yong, W. Lee, S. Jo, H. Ahn, J. U. Kim, and D. Y. Ryu, “Preferential Wetting Effects on Order-to-Disorder Transition in Polystyrene‑b‑poly(2-vinylpyridine) Films: A Reconsideration on Thickness Dependence”, Macromolecules, 51, 8550-8560 (2018.11). 

(134*) J. Ha, M. Kim, W. Lee, H. Lee, C. Han, W. G. Koh, and D. Y. Ryu, “Direct Measurement of Crosslinked Surface Layer in Superabsorbent Poly(acrylic acid)”, Materials Letters, 228, 33-36 (2018.10). 

(133*) S. Jo, S. Jeon, T. Jun, C. Park, and D. Y. Ryu, “Fluorine-containing Styrenic Block Copolymers toward High‒χ and Perpendicular Lamellae in Thin Films”, Macromolecules, 51, 7152-7159 (2018.09). 

(132*) H. Jung, T. Jun, W. Lee, D. Y. Ryu, “Ordering and Orientation of Giant Nanostructures from High-Molecular-Weight Block Copolymer via Solvent Vapor Annealing Process”, Journal of Photopolymer Science and Technology, 31, 479-482 (2018.09). 

(131) D. H. Kim, M. S. Park, N. U. Kim, D. Y. Ryu, and J. H. Kim, “Multifunctional Amine-containing PVA-g-POEM Graft Copolymer Membranes for CO2 Capture”, Macromolecules, 51, 5646-5655 (2018.07). 

(130*) H. Lee, V. Sethuraman, Y. Kim, W. Lee, D. Y. Ryu, and V. Ganesan, “Nonmonotonic Glass Transition Temperature of Polymer Films Supported on Polymer Brushes”, Macromolecules, 51, 4451-4461 (2018.06).  

 (129) T. H. Park, S. Yu, S. H. Cho, H. S. Kang, Y. Kim, M. J. Kim, H. Eoh, C. Park, B. Jeong, S. W. Lee, D. Y. Ryu, J. Huh, and C. Park, “Block Copolymer Structural Color Strain Sensor” NPG Asia Materials, 10, 328-339 (2018.04).  

 (128*) H. Aqoma, M. A. Mubarok, W. Lee, W. T. Hadmojo, C. Park, T. K. Ahn, D. Y. Ryu, and S.-Y. Jang, “Improved Processability and Efficiency of Colloidal Quantum Dot Solar Cells Based on Organic Hole Transport Layers”, Advanced Energy Materials, 8, 1800572 (2018.05).

 (127) H. Aqoma, S. Park, H.-Y. Park, W. T. Hadmojo, S.-H. Oh, S. Nho, D. H. Kim, J. Seo, S. Park, D. Y. Ryu, S. Cho, and S.-Y. Jang, “11% Organic Photovoltaic Devices based on PTB7-Th:PC70BM Photoactive Layers and Irradiation-Assisted ZnO Electron Transport Layers”, Advanced Science, 5, 1700858 (2018.05). 

 (126) W. T. Hadmojo, D. Yim, S. Sinaga, W. Lee, D. Y. Ryu, W.-D. Jang, I. H. Jung, and S.-Y. Jang, “Near-Infrared Harvesting Fullerene-Free All-Small-Molecule Organic Solar Cells Based on Porphyrin Donors”, ACS Sustainable Chemistry & Engineering, 6, 5306-5313 (2018.03). 

 (125) S. M. Cho, G. Song, C. Park, Y. Lee, H. S. Kang, W. Lee, S. Park, J. Huh, D. Y. Ryu, and C. Park, “Surface Functionalized Nanostructures viaPosition Registered Supramolecular Polymer Assembly”, Nanoscale, 10, 6333-6342 (2018.01). 

 (124) S. S. Yoo, G. H. Choi, W. Lee, J. Park, G.-R Yi, D. Y. Ryu, and P. J. Yoo, “Cumulative energy analysis of thermally-induced surface wrinkling of heterogeneously multilayered thin films”, Soft Matter, 14, 704-710 (2018.02).

 (123*) T. Jun, Y. Lee, S. Jo, C. Y. Ryu, and D. Y. Ryu, “Composition Fluctuation Inhomogeneity of Symmetric Diblock Copolymers: χN effects at Order-to-Disorder Transition”, Macromolecules, 51, 282-288 (2018.01).

 (122) W. T. Hadmojo, F. T. A. Wibowo, Ryu, D. Y. Ryu, I. H. Jung, and S.-Y. Jang, “Fullerene-free Organic Solar Cells with Efficiency of 10.2% and Energy Loss of 0.59 eV based on a Thieno[3,4-c]Pyrrole-4,6-Dione Containing Wide-Bandgap Polymer Donor”, ACS Applied Materials & Interfaces, 9, 32939-32945 (2017.09).

 (121) H. Hwang, H. Lee, S. Shafian, W. Lee, J. Seok, K. Y. Ryu, D. Y. Ryu, K. Kim, “Thermally Stable Bulk Heterojunction Prepared by Sequential Deposition of Nanostructured Polymer and Fullerene” Polymers, accepted.

 (120) S. M. Cho, G. Song, C. Park, Y. Lee, H. S. Kang, W. Lee, S. Park, J. Huh, D. Y. Ryu, and C. Park, “Globally Ordered Nanostructures of Supramolecularly Assembled End-Functionalized Polymer Blends with Tailored Surface Functionalities”, Nanoscale, submitted

 (119*) W. Lee, S. Park, Y. Kim, V. Sethuraman, N. Rebello, V. Ganesan, and D. Y. Ryu, “Effect of Grafting Density of Random Copolymer Brushes on Perpendicular Alignment in PS-b-PMMA Thin Films”, Macromolecules, 50, 5858-5866 (2017.08).

 (118) H. Kang, J. Lee, S. M. Cho, T. H. Park, M. J. Kim, C. Park, S. W. Lee, K. L. Kim, D. Y. Ryu, J. Huh, E. L. Thomas, and C. Park, “Printable and Rewritable Full Block Copolymer Structural Color”, Advanced Materials, 29, 1700084 (2017.08).

 (117*) S. Park, Y. Kim, W. Lee, S. Hur, and D. Y. Ryu, “Gyroid Structures in Solvent Annealed PS-b-PMMA Films: Controlled Orientation by Substrate Interactions”, Macromolecules, 50, 5033-5041 (2017.07).

 (116) W. T. Hadmojo,  D. Yim, H. Aqoma, D. Y. Ryu, T. J. Shin, H. W. Kim, E. Hwang, W.-D. Jang, I. H. Jung, and S.-Y. Jang, “Artificial Light-Harvesting n-type Porphyrin for Panchromatic Organic Photovoltaic Devices”, Chemical Science, 8, 5095-5100 (2017.07).

 (115*) Y. Lee, S. Jo, W. Lee, H. Lee, Y. S. Han, and D. Y. Ryu, “Multiple Phase Transitions in Block Copolymer Blends and Pressure Effects on These Transitions”, Polymer, 112, 427-434 (2017.03).

 (114) M. Zhu, H. Kim, Y. J. Jang, S. Park, D. Y. Ryu, K. Kim, P. Tang, F. Qiu, D. H. Kim, and J. Peng, “Toward High Efficiency Organic Photovoltaic Devices with Enhanced Thermal Stability Utilizing P3HT-b-P3PHT Block Copolymer Additives”, Journal of Materials Chemistry A, 4, 18193-18656 (2016.12).

 (113*) S. Park, Y. Kim, H. Ahn, J. H. Kim, P. J. Yoo, and D. Y. Ryu, “Giant Gyroid and Templates from High-Molecular-Weight Block Copolymer Self-assembly”, Scientific Reports, 6, 36326 (2016.11).

 (112) M. Kim, S. Park, D. Y. Ryu, K. Kim, “Improving thermal stability of organic photovoltaics via constructing interdiffused bilayer of polymer/fullerene”, Polymer, 103, 132-139 (2016.10).

 (111*) Y. Shin, H. Lee, W. Lee, and D. Y. Ryu, “Glass Transition and Thermal Expansion Behavior of Polystyrene Films Supported on Polystyrene-Grafted Substrates”, Macromolecules, 49, 5291-5296 (2016.07)

 (110*) J. Y. Lim, J. K. Kim, J. M. Lee, D. Y. Ryu, and J. H. Kim, “Amphiphilic Block?Graft Copolymer Electrolyte: Synthesis, Nanostructure, and Use in Solid-state Flexible Supercapacitors”, Journal of Materials Chemistry A, 4, 7848-7858 (2016.05)

 (109*) H. Jeon, D. J. Kim, M. S. Park, D. Y. Ryu, and J. H. Kim, “Amphiphilic Graft Copolymer Nanospheres: From Colloidal Self-Assembly to CO2 Capture Membranes”, ACS Applied Materials and Interfaces, 8, 9454-9461 (2016.04).

 (108*) H. Lee, W. Lee, Y. S. Han, E. Kim and D. Y. Ryu, “Autophobic Dewetting of Polystyrenes on the Substrates Grafted with Chemically Identical Polymers”, Polymer Journal, 48, 503-507 (2016.04).

 (107*) K. Kim, S. Park, Y. Kim, J. Bang, C. Park and D. Y. Ryu, “Optimized Solvent Vapor Annealing for Long-range Perpendicular Lamellae in Block Copolymer Films”, Macromolecules, 49, 1722-1730 (2016.03).

 (106) T. J. Park, S. K. Hwang, S. Park, S. H. Cho, T. H. Park, B. J. Jeong, H. S. Kang, D. Y. Ryu, J. Huh, E. L. Thomas and C. Park, “Electrically Tunable Soft-Solid Block Copolymer Structural Color” ACS Nano, 9, 12158-12167 (2015.12)

 (105) W. S. Chi, S. Hwang, S.-J. Lee, S. Park, Y.-S. Bae, D. Y. Ryu, J. H. Kim, J. Kim, “Mixed Matrix Membranes Consisting of SEBS Block Copolymers and Size-controlled ZIF-8 nanoparticles for CO2 Capture”, Journal of Membrane Science, 495, 479-488 (2015.12).

 (104*) H. Lee, S. Jo, T. Hirata, N. L. Yamada, K. Tanaka, E. Kim, and D. Y. Ryu, “Interpenetration of Chemically Identical Polymer onto Grafted Substrates”, Polymer, 74, 70-75 (2015.09).

 (103*) S.-W. Kim, E. Kim, H. Lee, B. C. Berry, H.-C. Kim, and D. Y. Ryu. “Thickness-dependent Ordering of Perpendicularly Oriented Lamellae in PS-b-PMMA Thin Films”, Polymer, 74, 63-69 (2015.09).

 (102) H. Jung, S. Woo, S., Y. Choe, D. Y. Ryu, J. Huh, and J. Bang, “A Single Step Process for Self-Assembled Block Copolymer Patterns via in Situ Annealing during Spin-Casting”, ACS Macro Letters, 4, 656-660 (2015.06).

 (101*) H. Jung, S. Woo, S. Lee, M. Kang, Y. Choe, J. G. Son, D. Y. Ryu, J. Huh, and J. Bang, “Combined Epitaxial Self-Assembly of Block Copolymer Lamellae on a Hexagonal Pre-pattern within Microgrooves”, Soft Matter, 11, 4242-4250 (2015.06).

 (100) S. Park, K. Koo, K. Kim, H. Ahn, B. Lee, C. Park, and D. Y. Ryu, “Transition Behavior of Asymmetric Polystyrene-b-Poly(2-vinylpyridine) Films: A Stable Hexagonally Modulated Layer Structure”, Polymer, 60, 32-39 (2015.03).

 (99) J. Seok, T. J. Shin, S. Park, C. Cho, J.-Y. Lee, D. Y. Ryu, M. H. Kim, and K. Kim, “Efficient Organic Photovoltaics Utilizing Nanoscale Heterojunctions in Sequentially Deposited Polymer/fullerene Bilayer”, Scientific Reports, 5, 8373 (2015.02).

 (98*) Y. H. Kim, H. Kang, S. Park, A R. Park, Y. M. Lee, D. K. Rhee, S. Han, H. Chang, D. Y. Ryu, and P. J. Yoo, “Multiscale Porous Interconnected Nanocolander Network with Tunable Transport Properties”, Advanced Materials, 26, 7998-8003 (2014.12).

 (97*) Y. Lee, H. Lee, S-W. Kim, S. Park, E. Kim, Y. S. Han, and D. Y. Ryu, “Baroplastic Behavior of Miscible Block Copolymer Blends”, Polymer, 55, 6967-6972 (2014.12).

 (96*) H. Ahn, S. Park, S.-W. Kim, P. J. Yoo, D. Y. Ryu, and T. P. Russell, “Nanoporous Block Copolymer Membranes for Ultrafiltration: A Simple Approach to Size Tunability”, ACS Nano, 8, 11745-11752 (2014.11)

 (95*) E. Choi, S. Park, H. Ahn, M. Lee, J. Bang, B. Lee, and D. Y. Ryu, “Substrate-independent Lamellar Orientation in High-molecular-weight Polystyrene-b-Poly(methyl methacrylate) Films: Neutral Solvent Vapor and Thermal Annealing Effect”, Macromolecules, 47, 3969-3977 (2014.06).

 (94*) D. H. Lee, H. Lee, Y. Lee, Y. Kim, and D. Y. Ryu, “Enthalpic and Volumetric Changes at Phase Transitions of Polystyrene-b-Poly(alkyl methacrylate) Copolymers and Their Pressure Dependence”, Macromolecules, 47, 2169-2173 (2014.03).

 (93) O. Gang, A. Checco, T. Hofmann, D. Y. Ryu, T. P. Russell, and B. Ocko, “Liquid Adsorption at Surfaces Patterned with Cylindrical Nano-Cavities”, Soft Matter, 9, 10550-10558 (2013.11)

 (92*) K. Koo, H. Ahn, S-W. Kim, D. Y. Ryu, and T. P. Russell “Directed Self-Assembly of Block Copolymers in the Extreme: Guiding Microdomains from the Small to the Large”, Soft Matter, 9, 9059-9071 (2013.10).? Invited Article Review [Top 10 most-read articles from the Soft Matter during Q3 of 2013 (July ? September)]

 (91) S. J. Kim, D. J. Kim, S. Y. Heo, H. Ahn, D. Y. Ryu, and J. H. Kim, “Micron-thick, Worm-like, Organized TiO2 Films Prepared Using Polystyrene-b-poly(2-vinyl pyridine) Block Copolymer and Preformed TiO2 for Solid-state Dye-sensitized Solar Cells”, Electrochimica Acta, 105, 15-22 (2013. 08)

 (90*) H. Ahn, Y. Lee, H. Lee, Y. S. Han, B. S. Seong and D. Y. Ryu, “Various Phase Behaviors of Weakly Interacting Binary Block Copolymer Blends”, Macromolecules, 46, 4454-4461 (2013.06).

 (89*) H. Ahn, Y. Lee, H. Lee, Y. Kim, D. Y. Ryu, and B. Lee, “Substrate Interaction Effects on Order to Disorder Transition Behavior in Block Copolymer Films”, J. Polym. Sci. Part B: Polym. Phys., 51, 567-573 (2013.04).

 (88*) E. Kim, H. Ahn, S. Park, H. Lee, M. Lee, S. Lee, T. Kim, E.-A. Kwak, J. H. Lee, X. Lei, J. Huh, J. Bang, B. Lee, and D. Y. Ryu, “Directed Assembly of High Molecular Weight Block Copolymers: Highly Ordered Line Patterns of Perpendicularly Oriented Lamellae with Large Periods”, ACS Nano, 7, 1952-1960 (2013.03).

 (87) Y. J. Jang, Y. H. Jang, S.-B. Han, D. Khatua, C. Hess, H. Ahn, D. Y. Ryu, K. Shin, K.-W. Park, M. Steinhart, and D. H. Kim, “Nanostructured Metal/Carbon Hybrids for Electrocatalysis by Direct Carbonization of Inverse Micelle Multilayers”, ACS Nano, 7, 1573-1582 (2013.02).

 (86) G. Song, S. Cho, H. Jung, R. H. Kim, I. Bae, H. Ahn, D. Y. Ryu, J. Huh, and C. Park, “Functionalized Soft Nanoporous Materials through Supramolecular Assembly of End-Functionalized Polymer Blends”, Chemistry-A European Journal, 18, 15662-15668 (2012.12).

 (85) H. Lee, M. S. Kang, S. K. Kang, B. J. Kim, Y. Yoo, H. S. Lim, S. H. Um, D. Y. Ryu, D. R. Lee, and J. H. Cho, “Surface Viscoelasticity of an Organic Interlayer Affects the Crystalline Nanostructure of an Organic Semiconductor and its Electrical Performance”, J. Physical Chemistry C, 116, 21673-21678 (2012.10).

 (84*) H. Ahn, Y. Lee, H. Lee, S. Park, Y. Kim, J. Cho, and D. Y. Ryu, “Microdomain Expansion and Transition Behavior of PS-b-PMMA/PS Homopolymers by SAXS Analysis”, Polymer, 53, 5163-5169 (2012.10).

 (83) S.-J. Choi, W.-J. Jeong, S.-K. Kang, M. Lee, E. Kim, D. Y. Ryu, and Y.-B. Lim, “Differential Self-Assembly Behaviors of Cyclic and Linear Peptides”,Biomacromolecules, 13, 1991-1995 (2012.07).

 (82) J. Yeo, S. Y. Kim, S. Kim, T.-H. Kim, D. Y. Ryu, and M. J. Park, “Mechanically and Structurally Robust Sulfonated Block Copolymer Membranes for Water Purification Applications”, Nanotechnology, 23, 245703 (2012.06).

 (81) J. Lee, H. Ahn, D. Y. Ryu, K. Shin, and J. Cho, “Anomaly in SANS for Polydisperse Polystyrene-b-Poly(isooctyl acrylate)”, Polymer, 53, 2495-2499 (2012.05).

 (80*) J. Gong, H. Ahn, E. Kim, H. Lee, S. Park, M. Lee, S. Lee, T. Kim, E.-A. Kwak and D. Y. Ryu, “Rapid Structural Reorganization in Thin Films of Block Copolymer Self-Assembly”, Soft Matter, 8, 3570-3575 (2012.04).

 (79*) S. Choi, E. Kim, H. Ahn, S. Naidu, Y. Lee, D. Y. Ryu, C. J. Hawker, and T. P. Russell, “Lamellar Microdomain Orientation and Phase Transition of PS-b-PMMA Films by Controlled Interfacial Interactions”, Soft Matter, 8, 3463-3469 (2012.03).

 (78) W. S. Chi, J. K. Koh, S. H. Ahn, J.-S. Shin, H. Ahn, D. Y. Ryu, and J. H. Kim, “Highly Efficient I2-free Solid-state Dye-sensitized Solar Cells Fabricated with Polymerized Ionic Liquid and Graft Copolymer-directed Mesoporous Film”, Electrochemistry Communications, 13(12), 1349-1352 (2011.12).

 (77) J. Kim, J. K. Koh, B. Kim, S. H. Ahn, H. Ahn, D. Y. Ryu, J. H. Kim, and E. Kim, “Enhanced Performance of I2-Free Solid-State Dye-Sensitized Solar Cells with Conductive Polymer up to 6.8%”, Advanced Functional Materials, 21, 4633-4639 (2011.12).

 (76) S. H. Park, H. S. Lee, J-D. Kim, D. W. Breiby, E. Kim, Y. D. Park, D. Y. Ryu, D. R. Lee and J. H. Cho, “A Polymer Brush Organic Interlayer Improves the Overlying Pentacene Nanostructure and Organic Field-effect Transistor Performance”, Journal of Materials Chemistry, 21(39), 15580-15586 (2011.10).

 (75*) H. Jung, D. Hwang, E. Kim, B-J. Kim, W. B. Lee, J. E. Poelma, J. Kim, C. J. Hawker, J. Huh, D. Y. Ryu, and J. Bang, “Three-Dimensional Multilayered Nanostructures with Controlled Orientation of Microdomains from Cross-Linkable Block Copolymers”, ACS Nano, 5, 6164-6173 (2011.08).

 (74*) S. Naidu, H. Ahn, J. Gong, B. Kim and D. Y. Ryu, “Phase Behavior and Ionic Conductivity of Lithium Perchlorate-doped Polystyrene-b-Poly(2-vinylpyridine) Copolymer”, Macromolecules, 44, 6085-6093 (2011.08).

 (73*) R. Guo, E. Kim, J. Gong, S. Choi, S. Ham, and D. Y. Ryu, “Perpendicular Orientation of Microdomains in PS-b-PMMA Thin Films on the PS brushed Substrates”, Soft Matter, 7, 6920-6925 (2011.08).

 (72*) E. Kim, H. Ahn, H. Lee, B. Lee, and D. Y. Ryu, “Ordering and Microdomain Orientation in Block Copolymer Films by Thermal Deprotection” , Polymer, 52, 2677-2684 (2011.06).

 (71*) J. Lee, D. Y. Ryu, and J. Cho, “Temperature-Pressure Superposition in SANS χ for an A-b-B Diblock Copolymer”, Macromolecules, 44, 2387-2391 (2011.04).

 (70) S. H. Ahn, H. Jeon, K. J. Son, H. Ahn, W. G. Koh, D. Y. Ryu, and J. H. Kim, “Efficiency Improvement of Dye-Sensitized Solar Cells Using Graft Copolymer-Templated Mesoporous TiO2 Films as an Interfacial Layer”, Journal of Materials Chemistry, 21(6), 1772-1779 (2011.02).

 (69) D. Kim, Heo, S. Ham, H. Yoo, C.-H. Lee, H. Yoon, D. Y. Ryu, D. Kim, and W.-D. Jang, “Cyclodipeptide-bridged Porphyrin Dimer Supramolecular Assemblies”, Chem. Comm. 47, 2405-2407 (2011.02).

 (68*) H. Lee, H. Ahn, S. Naidu, B. S. Seong, D. Y. Ryu, D. M. Trombly, and V. Ganesan, “Glass Transition Behavior of PS Films on Grafted PS Substrates”, Macromolecules, 43, 9892-9898 (2010.12).

 (67*) E. Kim, S. Choi, R. Guo, D. Y. Ryu, C. J. Hawker, and T. P. Russell, “Transition Behavior of PS-b-PMMA Films on the Balanced Interfacial Interactions”, Polymer, 51, 6313-6318 (2010.12).

 (66) Q. Hu, T.-K. Eom, S.-H. Kim, H.-J. Kim, H. H. Lee, Y.-S. Kim, D. Y. Ryu, K.-B. Kim, and T.-S. Yoon, “Vertically and Laterally Self-Aligned Double Layer of Nanocrystals in Nanopatterned Dielectric Layer for Nanocrystal Floating Gate Memory Device”, Electrochemical and Solid-State letters, 13, H366-H369 (2010.11)

 (65) P. Govindaiah, T.-J. Park, Y. J. Jung, S. J. Lee, D. Y. Ryu, J. H. Kim and I. W. Cheong, “Luminescent Iron Oxide Nanoparticles Prepared by One-pot Aphen-functionalization.”, Macromolecular Research, 18, 1109-1114 (2010.11).

 (64) Y. J. Jung, P. Govindaiah, T.-J. Park, S. J. Lee, D. Y. Ryu, J. H. Kim, and I. W. Cheong, “Luminescent Gold?Poly(thiophene) Nanoaggregates prepared by One-step Oxidative Polymerization”, Journal of Materials Chemistry, 20, 9770?9774 (2010.11)  

 (63) J. T. Park, D. K. Roh, R. Patel, E. Kim, D. Y. Ryu and J. H. Kim, “Preparation of TiO2 Spheres with Hierarchical Pores via Grafting Polymerization and Sol?Gel Process for Dye-sensitized Solar Cells”, Journal of Materials Chemistry, 20, 8521?8530 (2010.10)

 (62) K. Park, S. H. Park, E. Kim, J.-D. Kim, S.-Y. An, H. S. Lim, H. H. Lee, D. H. Kim, D. Y. Ryu, D. R. Lee and J. H. Cho, “Polymer Brush As a Facile Dielectric Surface Treatment for High-Performance, Stable, Soluble Acene-Based Transistors”, Chemistry of Materials, 22, 5377?5382 (2010.09).

 (61) P. S. Jo, Y. J. Park, S. J. Kang, T. H. Kim, C. Park, E. Kim, D. Y. Ryu, and H.-C. Kim, “Self Assembled Block Copolymer Gate Insulators with Cylindrical Nanostructures for Pentacene Thin Film Transistor”, Macromolecular Research, 18, 777-786 (2010.08),

 (60*) S. Naidu, H. Ahn, H. Lee, Y. M. Jung, and D. Y. Ryu, “Transition Behavior of Hydrogen Bonding mediated Block Copolymer Mixtures”, Macromolecules, 43, 6120-6126 (2010.07).

 (59) D. K. Roh, J. T. Park, S. H. Ahn, H. Ahn, D. Y. Ryu, and J. H. Kim, “Amphiphilic Poly(vinyl chloride)-g-poly(oxyethylene methacrylate) Graft Polymer Electrolytes: Interactions, Nanostructures and Applications to Dye-sensitized Solar Cells”, Electrochimica Acta, 55, 4976-4981 (2010.07).

 (58) Y. H. Jang, S. T. Kochuveedu, M. Cha, Y. J. Jang, J. Y. Lee, J. Lee, J Lee, J. Kim, D. Y. Ryu, and D. H. Kim, “Synthesis and photocatalytic properties of hierarchical metal nanoparticles/ZnO thin films hetero nanostructures assisted by diblock copolymer inverse micellar nanotemplates”, Journal of Colloid & Interface Science, 345, 125-130 (2010.05).

 (57) P. Govindaiah, Y. J. Jung, J. M. Lee, T.-J. Park, D. Y. Ryu, J. H. Kim, and I. W. Cheong, “Monodisperse and fluorescent poly(styrene-co-methacrylic acid-co-2-naphthyl methacrylate)/Fe3O4 composite particles”, Journal of Colloid & Interface Science, 343, 484-490 (2010.03).

 (56) I. Seo, D.-J. Lee, Q. Hu, C.-W. Kwon, K. Lim, S.-H. Lee, H.-M. Kim, Y.-S. Kim, H. H. Lee, D. Y. Ryu, K.-B. Kim, and T.-S. Yoon, “Selective Incorporation of Colloidal Nanocrystals in Nanopatterned SiO2 Layer for Nanocrystal Memory Device”, Electrochemical and Solid-State letters, 13, K19-K21 (2010.03)

 (55*) H. Ahn, C. Shin, B. Lee, and D. Y. Ryu, “Phase Transitions of Block Copolymer Film on Homopolymer Grafted Substrate”, Macromolecules, 43, 1958-1963 (2010.02).

 (54) D. Kannaiyan, E. Kim, N. Won, K. W. Kim, Y. H. Jang, M.-A. Cha, D. Y. Ryu, S. Kim, and D. H. Kim, “On the Synergistic Coupling Properties of Composite CdS/TiO2 Nanoparticle Arrays Confined in Nanopatterned Hybrid Thin Films”, Journal of Materials Chemistry, 20, 677-682 (2010.01).

 (53*) E. Kim, H. Ahn, D. Y. Ryu, J. Kim, and J. Cho, “Transition Behavior of Weakly Interacting PS-b-PMMA Films on Preferential Surfaces: A Direct Observation by GISAXS”, Macromolecules, 42, 8385-8391 (2009.11).

 (52*) B. Kim, D. Y. Ryu, V. Pryamitsyn, and V. Ganesan, “Dewetting of PMMA on PS-Brush Substrate”, Macromolecules, 42, 7919-7923 (2009.10).

 (51*) H. Ahn, D. Y. Ryu, Y. Kim, K. W. Kwon, J Lee and J. Cho, “Phase Behavior of Polystyrene-b-Poly(methyl methacrylate) Diblock Copolymer” Macromolecules, 42, 7897-7902 (2009.10).

 (50) M. Cha, C. Shin, D. Kannaiyan, Y. H. Jang, S. T. Kochuveedu, D. Y. Ryu, and D. H. Kim, “A Versatile Approach to the Fabrication of TiO2 Nanostructures with Reverse Morphology and Mesoporous Ag/TiO2 Thin Films via Cooperative PS-b-PEO Self-Assembly and Sol-Gel Process”, Journal of Materials Chemistry, 19, 7245-7250  (2009.10).

 (49) J. Bang, U. Jeong, D. Y. Ryu, T. P. Russell, and C. J. Hawker, “Block Copolymer Nanolithography: Translation of Molecular Level Control to Nanoscale Patterns”, Advanced Materials, 21, 4769-4792 (2009. 12).

 (48) J. Chang, C. Shin, Y. J. Park, S. J. Kang, H. J. Jeong, K. J. Kim, C. J. Hawker, T. P. Russell, D. Y. Ryu, and C. Park “Polymeric Gate Dielectric Interlayer of Cross-linkable Poly(styrene-r-methylmethacrylate) Copolymer for Ferroelectric PVDF-TrFE Field Effect Transistor Memory”, Organic Electronics, 10, 849-856 (2009. 08)

 (47*) B. Kim, H. Ahn, J. H. Kim, D. Y. Ryu, and J. Kim, “Transition Behavior and Ionic Conductivity of Lithium Perchlorate-doped Polystyrene-b-Poly(2-vinylpyridine)”, Polymer, 50, 3822-3827 (2009.07).

 (46*) D. Y. Ryu, S. Ham, E. Kim, U. Jeong, C. J. Hawker, and T. P. Russell, “Cylindrical Microdomain Orientation of PS-b-PMMA on the Balanced Interfacial Interactions: Composition Effect of Block Copolymers”, Macromolecules, 42, 4902-4906 (2009.07).

 (45) T. Yoon, H. Kim, K. Kim, D. Y. Ryu, T. P. Russell, Z. Zhao and Y. Xie, “Study of Growth Behaviour and Microstructure of Epitaxially Grown Self-assembled Ge Quantum Dots on Nanometer-scale Patterned SiO2/Si(001) Substrates”, Physica Status Solidi: b, 246, 721-724 (2009.04).

 (44) S. Ko, M. Park, J. S. Lee, Y. S. Kim, D. Y. Ryu, and U. Jeong, “In-plane Growth and Directional Control of Se Nanowires in Polymer Thin Films”, Chem. Comm. 14, 1855-1857 (2009.04).

 (43*) C. Shin, D. Y. Ryu, J. Huh, J. H. Kim, and K.-W. Kim, “Order-to-Order Transitions of Block Copolymer in Film Geometry”, Macromolecules, 42, 2157-2160 (2009.03).

 (42*) H. Ahn, S. Naidu, D. Y. Ryu, and J. Cho, “Phase Behavior of a Weakly Interacting Polystyrene and Poly(n-hexyl methacrylate) System: Evidence for the Coexistence of UCST and LCST”, .Macromol. Rap. Com., 30, 469-474 (2009. 03).

 (41*) E. Kim, H. Ahn, D. Y. Ryu, W. Joo, J. K. Kim, J. Jung, and T. Chang, “Closed-loop Transition induced by Homopolymers”, Macromolecules, 41, 9875-9881 (2008.12).

 (40*) C. Shin, H. Ahn, E. Kim, D. Y. Ryu, J. Huh, K.-W. Kim, and T. P. Russell, “Transition Behavior of Block Copolymer Thin Films on Preferential Surfaces”, Macromolecules, 41, 9140-9145 (2008.12).

 (39*) S. Ham, C. Shin, E. Kim, D. Y. Ryu, U. Jeong, T. P. Russell, and C. J. Hawker, “Microdomain Orientation of PS-b-PMMA by Controlled Interfacial Interactions”, Macromolecules, 41, 6431-6437 (2008.09).

 (38) P. S. Jo, J. Sung, C. Park, E. Kim, D. Y. Ryu, and S. Pyo, “Controlled Topology of Block Copolymer Gate Insulator by Selective Etching of Cylindrical Microdomains in Pentacene Organic Thin Film Transistors”, Advanced Functional Materials, 18, 1202-1211 (2008.04).

 (37) S. Park, D. Y. Ryu, J. K. Kim, M. Rhee, T. Chang, “Property of Diblock Copolymer having Extremely Narrow Molecular Weight Distribution”, Polymer, 49, 2170-2175 (2008.04). <non Yonsei>

 (36*) E. Kim, C. Shin, H. Ahn, D. Y. Ryu, J. Bang,. C. J. Hawker and T. P. Russell, “Size Control and Registration of Nano-structured Thin Films by Cross-linkable Units”, Soft Matter, 4, 475-479 (2008.03).

 (35) J. Cho, K. Shin, K. Cho, Y.-S. Seo, S. K. Satija, D. Y. Ryu, and J. K. Kim, “Phase Coherence upon Heating in Diblock Copolymer Films”, Macromolecules, 41, 955-862 (2008.02).

 (34) T. Yoon, H. Kim, K. Kim, D.Y. Ryu, T. P. Russell, Z. Zhao and Y. Xie, “Microstructure Analysis of Epitaxially Grown Self-Assembled Ge Islands on Nanometer-Scale Patterned SiO2/Si Substrates by High-Resolution Transmission Electron Microscopy”, J. Appl. Phys. 102, 104306 (2007.11).

 (33*) S. W. Hwang, E. Kim, C. Shin, J. H. Kim, and D. Y. Ryu, S. Park, T. Chang, and J. K. Kim, “Unusual Sensitivity of Closed-loop Phase Behavior to Chain Size and Distribution”, Macromolecules, 40, 8066-8070 (2007.10).

 (32*) D. Y. Ryu, C. Shin, and J. Cho, D. H. Lee, J. K. Kim, K. A. Lavery, and T. P. Russell, “Effective interaction parameter for homologous series of deuterated Polystyrene-block-Poly(n-alkyl methacrylate) Copolymers”, Macromolecules, 40, 7644-7655 (2007.10).

 (31) D. C. Hyun, U. Jeong, and D. Y. Ryu, “A Simple Approach to Determine the Equilibrium Shape and Position of Sandwiched Polymer Droplets”, J. Polym. Sci. Part B: Polym. Phys., 45, 2729-2738 (2007.10).

 (30*) D. Y. Ryu, J. Wang, K. A. Lavery, E. Drockenmuller, S. K. Satija, C. J. Hawker, and T. P. Russell, “Surface Modification with Crosslinked Random Copolymers: Minimum Effective Thickness”, Macromolecules, 40, 4296-4300 (2007.06)

 (29) Y. M. Jung, H. J. Kim, D. Y. Ryu, S. B. Kim, J. K. Kim,  “Application of Principal Component Analysis-based Two-dimensional Correlation Spectroscopy to Characterization of Order?Disorder Transition of Polystyrene-block-poly(n-pentyl methacrylate) Copolymer”, J. of Molecular Structure, 799, 96-101 (2006.11)

 (28) K. A. Lavery, J. D. Sievert, J. J. Watkins, T. P. Russell, D. Y. Ryu, and J. K. Kim, “Influence of Carbon Dioxide Swelling on the Closed-Loop Phase Behavior of Block Copolymers”, Macromolecules, 39, 6580-6583 (2006.09).

 (27) C. Li, D. H. Lee, J. K. Kim, D. Y. Ryu, and T., P. Russell, “Closed-Loop Phase Behavior for Weakly Interacting Block Copolymers”, Macromolecules, 39, 5926-5930 (2006.08).

 (26) D. H. Lee, H. Y. Kim, J. K. Kim, J. Huh, and D. Y. Ryu, “Swelling and Shrinkage of Lamellar Domain of Conformationally Restricted Block Copolymers by Metal Chloride”, Macromolecules, 39, 2027-2030 (2006.03).

 (25) H. J. Kim, S. B. Kim, J. K. Kim, Y. M. Jung, D. Y. Ryu, K. A. Lavery, and T. P. Russell, “Phase Behavior of a Weakly Interacting Block Copolymer by Temperature-Dependent FTIR Spectroscopy”, Macromolecules, 39, 408-412 (2006.01).

  - Above works are done at Yonsei University - 

 (24) T. S.Yoon, Z. M. Zhao, J. Liu, Y. H. Xie, D.Y. Ryu, T. P. Russell, H. M. Kim., and K. B. Kim, “Selective Growth of Ge islands on Nanometer-scale Patterned SiO2/Si Substrate by Molecular Beam Epitaxy”, Appl. Phys. Lett., 89, 063107 (2006.08)

 (23) V. Gowrishankar, N. Miller, M. D. McGehee, M. J. Misner, D. Y. Ryu, T. P. Russell, E. Drockenmuller, and C. J. Hawker, “Fabrication of Densely packed, well-ordered, high-aspect-ratio Silicon Nanopillars over large areas using Block Copolymer Lithography”, Thin Solid Films, 513, 289-294 (2006.03)

 (22) Z. M. Zhao, T. S. Yoon, W. Feng, B. Y. Li, J. H. Kim, J. Liu, O. Hulko, Y. H. Xie, H. M. Kim, K. B. Kim, H. J. Kim, K. L. Wang, C. Ratsch, R. Caflisch, D.Y. Ryu, and T. P. Russell, “The Challenges in Guided Self-assembly of Ge and InAs Quantum Dots on Si”, Thin Solid Films, 508, 195-199 (2006.06)

 (21) T. Yoon, Z. Zhao, W. Feng, B. Li, J. Liu, Y. Xie, D. Y. Ryu, T. P. Russell, H. Kim, and K. Kim, “Growth Behavior and Microstructure of Ge Self-assembled Islands on Nanometer-scale Patterned Si Substrate”, J. of Crystal Growth, 290, 369-373 (2006.05)

 (20) H. Y. Kim, D. Y. Ryu, U. Jeong, D. H. Kho and J. K. Kim, “The Effect of Chain Architecture of In-Situ Formed Copolymers on Interfacial Morphology of Reactive Polymer Blends”, Macromol. Rap. Com., 26, 1428-1433 (2005. 09).

 (19) A. Agrawal, J. Park, D. Y. Ryu, P. T. Hammond, T. P. Russell, and G. H. McKinley, “Controlling the Location and Spatial Extent of Nanobubbles Using Hydrophobically Nanopatterned Surfaces”, Nano Letters, 5, 1751-1756 (2005.08).

 (18) D. Y. Ryu, K. Shin, E. Drockenmuller, C. J. Hawker, T. P. Russell, “A Generalized Approach to Surface Modification”, Science, 308, 236-239 (2005.04). Selected in “Science Concentrates” of Chemical & Engineering News, 83, 29 (2005. 04), selected in “Analytical Chemistry” of ACS, 253A (2005. 07)

 (17) E. Drockenmuller, L. Y. T. LI, D. Y. Ryu, E. Harth, T. P. Russell, H. Kim, and C. J. Hawker, “Covalent Stabilization of Nanostructures: Robust Block Copolymer Templates from Novel Thermo-Reactive Systems”, J. Polym. Sci. Part A: Polym. Chem., 43, 1028-1037 (2005.03).

 (16) Q. Zhang, T. Xu, D. Butterfield, M. J. Misner, D. Y. Ryu, T. Emrick, and T. P. Russell, “Controlled Placement of CdSe Nanoparticles in Diblock Copolymer Templates by Electrophoretic Deposition”, Nano Letters, 5, 357-361 (2005.02).

 (15) J. S. Kim, K. H. Lee, S. M. Jo, D. Y. Ryu, and J. K. Kim, “Microphase Separation and Crystallization in Binary Blends Consisting of Poly(methyl methacrylate)-block-Polystyrene Copolymer and Poly(vinylidene fluoride)”, Polymer (Korea), 28, 509-518 (2004.11).

 (14) J. K. Kim, J. Jang, D. H. Lee, and D. Y. Ryu, “Phase Behavior of Polystyrene and Poly(n-pentyl methacrylate) Blend with small amounts of Symmetric Polystyrene-block-Poly(n-pentyl methacrylate) Copolymers”, Macromolecules, 37, 8599-8605 (2004.11).

 (13) D. Y. Ryu, D. H. Lee, J. Jang, J. K. Kim, K. A. Lavery, T. P. Russell, “Complex Phase Behavior of a Weakly Interacting Binary Polymer Blend”, Macromolecules, 37, 5851-5855 (2004.08).

 (12) D. Y. Ryu, D. H. Lee, U. Jeong, S. H. Yun, S. Park, K. Kwon,  B. H. Sohn, T. Chang, J. K. Kim, and T. P. Russell, “Closed-Loop Phase Behavior of polystyrene-block-poly(n-pentyl methacrylate) Copolymers with various Block Length Ratios”, Macromolecules, 37, 3717-3724 (2004.05).

 (11) U. Jeong, D. Y. Ryu, D. H. Kho, J. K. Kim, J. T. Goldbach, D. H. Kim, and T. P. Russell, “Enhancement in the Orientation of Microdomain in Block Copolymer Thin Films using Added Homopolymer”, Advanced Materials, 16, 533-536 (2004.03).

 (10) D. Y. Ryu, D. J. Lee, J. K. Kim, K. A. Lavery, T. P. Russell, Y. S. Han, B. S. Sung, C. H. Lee, and P. Thiyagarajan, “The effect of Hydrostatic Pressure on Closed-Loop Phase Behavior of Block Copolymers”, Phys. Rev. Lett., 90, 235501 (2003.06).

 (9) U. Jeong, D. Y. Ryu, J. K. Kim, D. H. Kim, X. Wu, and T. P. Russell, “Precise Control of Nanopore Size in Thin Film Using Mixtures of Asymmetric Block Copolymer and Homopolymer”, Macromolecules, 36, 10126-10129 (2003.12).

 (8) U. Jeong, D. Y. Ryu, and J. K. Kim,  “Phase Behavior of Polystyrene-block-poly(n-butylmethacrylate) Copolymers with Various End-Functional Groups”, Macromolecules, 36, 8913-8918 (2003.12).

 (7) U. Jeong, D. Y. Ryu, D. H. Ko, D. H. Lee, J. K. Kim, and T. P. Russell, “Phase Behavior of Mixtures of Block Copolymer and Homopolymers in Thin Films and Bulk”, Macromolecules, 36, 3626-3634 (2003.05).

 (6) U. Jeong, D. Y. Ryu, J. K. Kim, D. H. Kim, T. P. Russell, and C. J. Hawker “Volume Contractions Induced by Crosslinking: A novel Route to Nanoporous Polymer Films”, Advanced Materials 15, 1247-1250 (2003.08).

 (5) D. Y. Ryu, U. Jeong, D. H. Lee, J. Kim, H. S. Youn and J. K. Kim, “Phase Behavior of deuterated polystyrene-block-poly(n-pentyl methacrylate) copolymers”, Macromolecules, 36, 2894-2902 (2003.04)

 (4) D. Y. Ryu, M. S. Park, S. H. Chae, Jin Jang, J. K. Kim and T. P. Russell, “Phase Behavior of Polystyrene/poly(n-pentyl methacrylate)”, Macromolecules, 35, 8676-8680 (2002.11).

 (3) D. Y. Ryu, U. Jeong, J. K. Kim, and T. P. Russell, “Closed-Loop Phase Behavior in Block Copolymers” Nature Materials. 1, 114-117 (2002.10). selected in “News and Views” of Nature Materials, 1, 85 (2002.10)

 (2) D. Y. Ryu, J. K. Kim, “The aromatic hydrocarbon resins with various hydrogenation degrees, Part 2. The adhesion and viscoelastic properties of the mixtures of resins and block copolymers”, Polymer, 41, 5207-5218 (2000.06).

 (1) J. K. Kim, D. Y. Ryu, K. Lee, “The aromatic hydrocarbon resins with various hydrogenation degrees, Part 1. The phase behavior and miscibility with polybutadiene and with polystyrene”, Polymer, 41, 5195-5205 (2000.06).